Perpetual calendar



Jan. 13, 1931.

G. W. FENIMORE PERPETUAL CALENDAR 5 Sheets-Sheet 3 INVENTIOR. gear W. I??? more ATTORNEY Filed Ocp. l. 1928 Patented Jan. 13,1931

GEORGE w. summons, ortos Antennas, CALIFORNIA i rnnr munr. "n icanpli nlea"Octobe 1,

This invention relates to and has for a primary object the provisionfof aperpetual calendar embodying. a surface having fixed days of the eek designations thereon and means. for moving groups of-num'erals and/ or characters "representing years, months and days of the month relative to and forretalning the same in selected positions representa 'tive of a selected calendar month in any given 10 year Within the range of the'calendar. V

. The invention comprehen'dsithe employment of a plurality of groups ofnume'rals one for each month of calendar year and two additional groups .for the'months; of

January andFebruaryfor leap years. Each of the months groups is composed of 13 vertical columns ofnu merals arranged" for registration With the days of the; week designations on'th'e' face of the'calendar, and

the several groups are arranged irilu fiqllence from January to December so' thatthey will correspondto provide {calendar for any year. a Another'object is to providefthenames the months in central positions with respect tothe several month groups'o'fnumerals; and to additionally provide' year designations also movable With respect to the month and days of the eek designationsijtogether with means for adjustingthe severalgroups of numerals and year designationsto represent any selected calendar. month. v

A more detailed object is to provide aa cal' endar provided with days of the 'Weekldesigv nations on the face thereof andindependently adjustable members provided respectively with the month, and daysof the month des ignations, and the yeardesignations, Other objects may appear as the 'descrip-f tion progresses 11;;

In the accompanying drawings I have shown a suitable-form of perpetual calendar for carrying out thehereinaboveinamed ob jects of invention, but it' will be understood that the form of device 'shown is optional and arbitrary and other forms maybe pro" vided Within the scope of the appended 5 claims Without departingfrom the-spirit of 0 myinvention'. l

ance withmyinvention.

als representingthe' months'of February and "as'shoWn 'l, l

'ftical shafts D and-J)? respectively. I

CALENDAR- 1928.: semi no. 36 ,4 9.; v

in stiadmwin i V i Fig. I is a front elevation ofga desk type perp'etualii calendar constructed in accord Fig. 2 is a rear elevation of the saine'vvith, the had: broken avvay toshovvtheoperating mechanism; f V h i v k 15 1g. 3 1s a fragmentaryvmwof a strip of paper, celluloid, or the like; upon lzwhich' is printed or formed the yearsiinclu'ded in-the range of; a calendargandarranged' in a pe culiar Way for purposes hereinaftershown, "Fig. lisa fragmentary view of astripof material on Whichis shown groups of numer January fforleapyears; i 1

' Fig.5 isa composite viewlof a continuation f the strip ofrnaterial shovvnin Fig. it; showingall ofthe months of a calendar year With groups of numerals representing the days of the month. L f .Fi'g. 6 is anenlarged sectional. plan online 6 6ofFi'g;1 WV Fig.7 is a sectional elevation of the same on line "of Fig.:"1. V Fig.'8 is a fragmentary section of the same on line 8-8 of Fig? i i 'Briefly described,the form of calendar shown may have a suitable base'A itmetal, bakelite', or other materialQjwith' a-"detachable back. dfisuitably attached thereto, 5 The face olt' the .baseflis provided itha ma'in openingl in the center thereof which' is closed 7 by r a .sheet of glass,- mica, or pther' transparent element 2.) i

Abovethe opening'l I also-provide'a narrovv opening 3 which nay beg overedby the sheet of glass 2 or layanother separate piece of. glass. I Themonth designationstrip B is horizontally disposed in-i the base AQsd that i v .it'may be moved horizontally back of the opening 1 and the-groups of numerals thereon may be -visible through 'tlieiglassj 2, While the names 0t'thejmonths may be visible through the lower portion of the opening 3, lhe month. designation stripB suitably attached atitsf endsrespectively to reels C and C Whi chare' rotatablylmo-un'td,onver;

- tively.

. operating knob F so that when s aid lrnob" faceoithe strip .will move n-a planeiolose,

sideof the glassfz;

is rotated the month designation strip B will be moved horizontally behind the' glass '2 preferably guided in its horizontal move: ment by means of a pair of rotatablepi'ns'or rollers, as at G, mounted on opposite sidesoi the opening 1, as sliown'ih'Figi 6. 7

It will be understoodatthis point that when the strip ;B .is' inoved by turning the knob Fit is unwound from one off the'lr'eels and is at all tiines' stretched taut,oventhe reels and the. guidesiG so that lthe'gprinted to, if not actually in contact with, the rearofr-l iifierals,Ias at{5, 5 etc., with the names of the months in abbreviated form, preferably printed'atlthe tops of the groups and inrthe exact, center'sthereof. will be I noted that thereare 13 vertical jcioluinns of numeralsin each,ofqthem'onths, and that'the first day of each month is" in aidifferentlcolumnthanthe firstdayofeach of the other months, unless in a .gnenyyear the firstzfdays of any two-{or more months-should falllori the samev of the week; The; vertical columns in ea'cl iof the rouper) correspond toa'nd are adapted toregister with theinitials,oitheodafi Of'th e week, at 6, formed on the facefiahebaee preferably betweenjtheopenings, 1 and tallyirelativeto thedaysiofitheweek designations 6, selected columnseoflnumerals in the groups ,5 may be moved into proper relat on 7 ith'edays ofigthe'weekI'designatio-ns'. 1

' The numerals in the groups 5' are .so arranged that any possible arrangement of day's of'jtjhe moauris provided'fbr associatijon' and registrationwith the'daysotthe week designations 16 ,to' comprehendthe' luse of theca lendar 'for any year within a .pre-.'

determined range.

.-=Ref rring to'Fig'. 4,

a were, mad-e151; a

- slight difference inlthe arrangement of the groups'fiis necessary to pr'ov-ide;-for' leap years, it jbeing ,uridei st fii hfifl the billy month's a'lfeoted by e p ey ff are J y d F bru ry,and;for. thisjpu'rposeflthe two extra groups shownin Figg l areprovided leapyears, as at-L. Y.\. Theyear designations':Eonthe;stripH are elosely spaced apart verticallyon the strip, and successive years 'areliorizo-ntally spaced apart to correspond and opening 1, as:.'shown..ZLSaidastrip-B ZiEI-zil to .thef.columns .01?numerals in the groups 5. The year designation strip H is mounted similarlyto the month designation strip B on reels land I, whi'eh are carried on vertical ish'a fts 'd and J"'.*Said shafts are operably 1 connected together by; means of one or more beltsfK'whichbperaate pulleys L onlthe V i I "spoiid ing extent for movingthe strip H ver- 'Thestrip 131s subdividedinto laga s movementadjacenttlieopening 3 byjmeans of 'rollersor ins"N,1N'meantediabey theo' em ing '3Iand 'elawtheopeni'fig 1 Thus, as the knohMfis' ti'irnedlthe;yearistrip H will be moved verticaljlyl in a msnner similar to the movjerfientoif the s' tri.p"B..;j w

. By' 'refferencefto "Rig; 1', it w'li be observed that the calendar month shown through the pe in s 1 andtyrei jres ts, th ontlr or September injure year- 1923, and a will be ,netedrai t. he first the m n h 193 t eniber would'fall on aturda Thus, when 'tliestrip B is adjusted so thatthe column in 3; Thus, f'as the strip .iskniovedihoriaon z c'lu'ding'the first day of'tlie September group isiniovedjntojpos'ition below the letter S representing Saturday" on the face of a the calendar; 'th"e s"e'ven vertical columns of numerals" representing thejseptember calendar will be properlyfpositioned 'below' the other daysof the weekdes'ignation. I p

Mov'einent of the yearfdesignation strip H so that the year 1928" will appear through the glass 2 in the upper portion of the opening s ldesignated the position- 7 of the month designation? Sepl. In other words, to, ad;

' just the ca'lendarfor any particularmonth in'a g fiven'year, the year strip .His 'first'moved so that th'ejfjroper yearwill'b'e visible 'atthe top orthe calendar; Thereafter the month strip B is moved to the rightor l'e'ft until the rmonthi designation registers vertically with the year designation,- andl-the movement of the strip-:B :to such position definitely fixes the vertical -colurnns'of; numerals: representingthe days of the month in the groups 5 relative to the fixe'd days. ofthe week'designation p g'. V 1 As inthe caseofthe strip B,-the,year desig- 1 nation strip H mayfalso be made-continuous so as to run over rollers on the shafts J and 'J', or other means than the belts K may be employed for operably connecting the reels I and I. v -v Having thus described my invention, what I claim is indicating the days of the current month,

and other numeralspreceding and succeed" ing the days of the current month and representing days of the preceding andsucceeding months, the month designations being in predetermined fixed. position relative to said groups of numerals, and a year'designation days of the month numerals, said groups of v numerals being arranged to provide progress sively different combinations of numerals for eachof the months, a year designationstrip movable at right angles to the month desi g nation strip and having the year designations thereon arranged in different positions transversely of the strip to correspond to the particular month and days of the month combinations of the calendar month with which said years are asso'ciated, whereby when the year and month designations are arranged one above the other the days of the week designations will correspond to that month. and

year. V

v V e GEORGE W. .FENIMORE.

strip also movable adjacentxan aperture of said face and at right angles to the month designation strip, theyear designations being arranged in predetermined fixed position for registration with the month designations in order to indicate a given calendar month. 2. A perpetual calendar includingasup portin with Xed days of the week designations thereon, a month designation strip movable horizontally adjacent an aperture ofsaid face, and provided with a separate group of numerals of each month of a calendar year arranged in longitudinal sequence 011 said strip for indicating the days of the month, said strip having month designations in pre determined fixed positions thereon relative to said days of the month designations, and a year designation strip movable at right anglesto the month designation stripand adjacent an aperture of said face and provided with year designations arranged in different positions thereon corresponding to the month designations on said month designation strip j whereby on the movement of the year and month designation strips into predetermined positions a calendar for a given month and year will be visible thru the apertures of said face when the year and month designations are in registration. 7

3. A perpetual calendar a month designation strip having the names of the months of a calendar year arranged in regular order thereon and groups of numerals associated with said names'of the months member having an apertured face Y including a'sup- I a porting member having an apertured face with days of the week designations thereon, 

